Knowledge base for software setup, errors, and daily tool work.

Fix PowerShell Connection Refused on Localhost

When you run a PowerShell command to connect to a service on localhost and get a 'connection refu...

How to Fix Microsoft Store Error 0x80073cf0

You open Microsoft Store to download or update an app, and instead get error code 0x80073cf0. Thi...

Fix Chrome Profile Permission Denied Error on Ubuntu

You try to launch Google Chrome on Ubuntu and get an error like 'Permission denied' or 'Failed to...

Windows Defender Token Expired: How to Fix It

If you see a message that your Windows Defender token has expired, it usually means the security ...

Windows Defender Setup Checklist for New PC

When you set up a new PC, Windows Defender (now called Microsoft Defender Antivirus) is already a...

Fix PowerShell Authentication Failed Credentials Error